# SDR TWAA0003907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2000
- Submitted: April 13, 2000
- Operation: Air carrier
- Aircraft: N984Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47412
- Aircraft time: 71,674 hours, 81,088 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Bs 83
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA0003907

## Discrepancy

DURING OP 16 MAINT CHECK, FRAME PN 9911505-7 HAD 1 INCH CRACK AT BOTH LT AND RT OTBD CORNERS, STA 83 BELOW CENTER COCKPIT WINDOW.  REPLACED WITH NEW CASTING SHOP DRILLED PER OLD SAMPLE PER DRAWING SRO 9950268.

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